CN109687138B

Movatterモバイル変換

Info

Publication number: CN109687138B
Application number: CN201910052309.8A
Authority: CN
Inventors: 许锋; 陈文健
Original assignee: Nanjing University of Posts and Telecommunications
Current assignee: Nanjing University of Posts and Telecommunications
Priority date: 2019-01-21
Filing date: 2019-01-21
Publication date: 2020-10-02
Anticipated expiration: 2039-01-21
Also published as: CN109687138A

Abstract

Translated fromChinese

基于复合左右手单元结构的天线，包括介质基板、顶层金属层、及底层金属层；顶层金属层的中心附近开设有折弯型槽，及顶层金属层的一侧设置有共面波导；介质基板上设置有一边开口的矩形区域，沿该矩形区域周向等距设置有多个第一金属化通孔，且在该矩形区域的内部设置有多排第二金属化通孔，顶层金属层与底层金属层通过金属化通孔相连通，介质基板、顶层金属层、底层金属层与金属化通孔形成矩形基片集成波导谐振腔；矩形基片集成波导谐振腔通过微带线与共面波导相连接；底层金属层上并列设置有两个矩形环槽，且每个矩形环槽的内部均设置有一贴片。本发明进一步缩小了天线尺寸，降低了天线的加工成本，更易于和平面电路集成，有更低的工作频点。

An antenna based on a composite left and right-handed unit structure includes a dielectric substrate, a top metal layer, and a bottom metal layer; a bending groove is formed near the center of the top metal layer, and a coplanar waveguide is provided on one side of the top metal layer; A rectangular area with an opening on one side is provided, a plurality of first metallized through holes are arranged equidistantly along the circumference of the rectangular area, and a plurality of rows of second metallized through holes are arranged inside the rectangular area, and the top metal layer and the bottom layer are provided with The metal layers are connected through metallized through holes, and the dielectric substrate, the top metal layer, the bottom metal layer and the metallized through holes form a rectangular substrate integrated waveguide resonator; the rectangular substrate integrated waveguide resonator is connected to the coplanar waveguide through a microstrip line ; Two rectangular ring grooves are arranged side by side on the bottom metal layer, and a patch is arranged inside each rectangular ring groove. The invention further reduces the size of the antenna, reduces the processing cost of the antenna, is easier to integrate with a plane circuit, and has a lower operating frequency.

Description

Translated fromChinese

基于复合左右手单元结构的天线Antenna Based on Composite Left-Handed Unit Structure

技术领域technical field

本发明涉及一种天线，尤其涉及一种复合左右手单元结构天线，属于微波技术领域。The invention relates to an antenna, in particular to a composite left and right hand unit structure antenna, which belongs to the technical field of microwaves.

背景技术Background technique

随着无线通信系统的发展，很多设备都要求能工作在2个或多个频段，因此双多频段天线成为近年来天线研究的热点。1999年，D.R. Smith等利用Pendry的理论制成了世界上第一块人工左手材料。2002年，Claoz和Itoh首次提出用传输线实现左手材料的新方法，复合左右手传输线作为左手材料的传输线实现形式，损耗低，易实现，具有多种异常特性和潜在应用价值，被广泛应用于微波工程设计中。With the development of wireless communication systems, many devices are required to work in two or more frequency bands, so dual multi-band antennas have become the focus of antenna research in recent years. In 1999, D.R. Smith et al. made the world's first artificial left-hand material using Pendry's theory. In 2002, Claoz and Itoh first proposed a new method of realizing left-handed materials with transmission lines. Composite left-handed transmission lines, as a form of transmission line realization of left-handed materials, have low loss, easy implementation, and have a variety of abnormal characteristics and potential application value, and are widely used in microwave engineering. designing.

然而，由于现代通信技术的迅速发展和应用，对通信系统的小型化、集成化提出了更高的要求，使得留给天线的空间越来越小。目前，虽然传统的天线在一定程度上减小了天线的尺寸，但是仍然存在带宽窄、增益小、辐射效率低、加工成本较高等问题，因此，本发明在传统的双频天线基础上，对天线结构进行改进，将双频天线改为单频天线，在保证天线辐射性能好、增益高的前提下，天线尺寸得到进一步地减小，且能达到满足多种天线场合的实际需求。However, due to the rapid development and application of modern communication technologies, higher requirements have been placed on the miniaturization and integration of communication systems, resulting in less and less space for antennas. At present, although the traditional antenna reduces the size of the antenna to a certain extent, there are still problems such as narrow bandwidth, low gain, low radiation efficiency, and high processing cost. Therefore, the present invention is based on the traditional dual-frequency antenna. The antenna structure is improved, and the dual-frequency antenna is changed to a single-frequency antenna. Under the premise of ensuring good antenna radiation performance and high gain, the size of the antenna is further reduced, and it can meet the actual needs of various antenna applications.

综上所述，如何提供一种天线尺寸更小的复合左右手单元结构天线，就成为本领域技术人员亟待解决的问题。To sum up, how to provide a composite left-handed unit structure antenna with a smaller antenna size has become an urgent problem to be solved by those skilled in the art.

发明内容SUMMARY OF THE INVENTION

本发明的目的是为了解决现有技术的上述缺陷，提出了一种复合左右手单元结构天线，在小型化、高增益电路中具有重要的应用价值。The purpose of the present invention is to solve the above-mentioned defects of the prior art, and propose a composite left-handed unit structure antenna, which has important application value in miniaturized and high-gain circuits.

本发明的技术解决方案是：The technical solution of the present invention is:

基于复合左右手单元结构的天线，包括介质基板、设置在介质基板顶层的顶层金属层、及设置在介质基板底层的底层金属层；所述顶层金属层的中心附近开设有折弯型槽，及顶层金属层的一侧设置有共面波导；所述介质基板上设置有一边开口的矩形区域，沿该矩形区域周向等距设置有多个第一金属化通孔，且在该矩形区域的内部设置有多排第二金属化通孔，所述顶层金属层与所述底层金属层通过金属化通孔相连通，介质基板、顶层金属层、底层金属层与金属化通孔形成矩形基片集成波导谐振腔；矩形基片集成波导谐振腔通过微带线与所述共面波导相连接；所述底层金属层上并列设置有两个矩形环槽，且每个矩形环槽的内部均设置有一贴片；An antenna based on a composite left and right-handed unit structure includes a dielectric substrate, a top metal layer disposed on the top layer of the dielectric substrate, and a bottom metal layer disposed on the bottom layer of the dielectric substrate; a bending groove is formed near the center of the top metal layer, and the top layer A coplanar waveguide is arranged on one side of the metal layer; a rectangular area with one side open is arranged on the dielectric substrate, and a plurality of first metallization through holes are arranged equidistantly along the circumferential direction of the rectangular area, and inside the rectangular area There are multiple rows of second metallized through holes, the top metal layer and the bottom metal layer are connected through the metallized through holes, and the dielectric substrate, the top metal layer, the bottom metal layer and the metallized through holes form a rectangular substrate integrated A waveguide resonator; a rectangular substrate integrated waveguide resonator is connected to the coplanar waveguide through a microstrip line; two rectangular ring grooves are arranged in parallel on the bottom metal layer, and each rectangular ring groove is internally provided with a patch;

所述折弯型槽包括多个折弯处，每个折弯处均对应一折弯开口，且折弯开口的开口方向向外，每个折弯处均为直角折弯；所述矩形区域的内部设置有两排第二金属化通孔，每排第二金属化通孔均包括三个第二金属化通孔，每个第二金属化通孔的直径与所述折弯开口宽度相同；The bending groove includes a plurality of bending positions, each bending position corresponds to a bending opening, and the opening direction of the bending opening is outward, and each bending position is a right-angle bending; the rectangular area There are two rows of second metallization through holes inside, each row of second metallization through holes includes three second metallization through holes, and the diameter of each second metallization through hole is the same as the width of the bending opening ;

每个所述第二金属化通孔均位于所述折弯处在介质基板上的投影位置。Each of the second metallization through holes is located at a projected position of the bending portion on the dielectric substrate.

优选地，所述顶层金属层的一侧开设有凹口，凹口的一侧与所述共面波导的中心导带相连接，且所述凹口的尺寸与所述矩形区域一边的开口尺寸相匹配。Preferably, a notch is formed on one side of the top metal layer, one side of the notch is connected with the central conducting strip of the coplanar waveguide, and the size of the notch is the same as the size of the opening on one side of the rectangular area match.

优选地，所述共面波导的中心导带与所述顶层金属层共面，并与凹口两侧的顶层金属层形成共面波导，所述微带线与共面波导的中心导带相连接，且矩形基片集成波导谐振腔通过微带线与所述共面波导相连接。Preferably, the central conducting strip of the coplanar waveguide is coplanar with the top metal layer, and forms a coplanar waveguide with the top metal layers on both sides of the notch, and the microstrip line is connected to the central conducting strip of the coplanar waveguide , and the rectangular substrate integrated waveguide resonator is connected with the coplanar waveguide through a microstrip line.

优选地，所述凹口的开口方向与所述矩形区域一边开口的开口方向相同。Preferably, the opening direction of the notch is the same as the opening direction of one side of the rectangular area.

优选地，所述贴片的长度小于所述矩形环槽的长度，所述贴片的宽度小于所述矩形环槽的宽度。Preferably, the length of the patch is smaller than the length of the rectangular ring groove, and the width of the patch is smaller than the width of the rectangular ring groove.

优选地，所述贴片的宽度与所述第二金属化通孔的直径相同。Preferably, the width of the patch is the same as the diameter of the second metallized through hole.

优选地，所述第一金属化通孔的直径大于等于相邻两个所述第一金属化通孔之间的间距的二分之一。Preferably, the diameter of the first metallization through hole is greater than or equal to half of the distance between two adjacent first metallization through holes.

本发明与现有技术相比，具有以下技术效果：本发明公开的一种基于新型复合左右手单元结构的天线，在保留了传统背腔缝隙天线高辐射性能优点的基础上，进一步缩小了天线尺寸，降低了天线的加工成本，更易于和平面电路集成。且本发明的新型复合左右手单元结构比传统复合左右手天线更紧凑，尺寸不变的情况下，有更低的工作频点。另外，本发明复合左右手传输线的零阶或负数阶谐振特性可以有效的突破传统天线在设计上受谐振波长的限制，在天线小型化设计中有极大的应用价值。Compared with the prior art, the present invention has the following technical effects: an antenna based on a novel composite left and right hand unit structure disclosed in the present invention further reduces the size of the antenna on the basis of retaining the advantages of the high radiation performance of the traditional cavity-backed slot antenna , reduces the processing cost of the antenna, and is easier to integrate with the plane circuit. In addition, the structure of the novel composite left and right-handed unit of the present invention is more compact than the traditional composite left and right-handed antenna, and under the condition of the same size, it has a lower working frequency. In addition, the zero-order or negative-order resonance characteristics of the composite left and right-handed transmission line of the present invention can effectively break through the limitation of the resonance wavelength in the design of traditional antennas, and have great application value in the design of antenna miniaturization.

以下便结合实施例附图，对本发明的具体实施方式作进一步的详述，以使本发明技术方案更易于理解、掌握。The specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings of the embodiments, so as to make the technical solutions of the present invention easier to understand and grasp.

附图说明Description of drawings

图1是本发明的结构示意图；Fig. 1 is the structural representation of the present invention;

图2是本发明的俯视结构示意图；Fig. 2 is the top view structure schematic diagram of the present invention;

图3是本发明的仰视结构示意图；Fig. 3 is the bottom view structure schematic diagram of the present invention;

图4是本实施例的仿真和测量的S参数图；Fig. 4 is the S-parameter diagram of the simulation and measurement of the present embodiment;

图5是本实施例在3.31GHz频段下的仿真E面和H面增益方向图。FIG. 5 is the simulated E-plane and H-plane gain patterns in the 3.31 GHz frequency band of this embodiment.

其中，1－顶层金属层，11－折弯型槽，111－折弯处，12－凹口 13－中心导带，2－介质基板，21－矩形区域， 22－第一金属化通孔，23－第二金属化通孔，24－开口，3－底层金属层，31－矩形环槽，311－贴片。Among them, 1-top metal layer, 11-bending groove, 111-bending place, 12-notch 13-center conduction band, 2-dielectric substrate, 21-rectangular area, 22-first metallized through hole, 23-second metallized through hole, 24-opening, 3-bottom metal layer, 31-rectangular ring groove, 311-patch.

具体实施方式Detailed ways

基于复合左右手单元结构的天线，如图1-图3所示，包括介质基板2、设置在介质基板2顶层的顶层金属层1、及设置在介质基板2底层的底层金属层3；顶层金属层1的中心附近开设有折弯型槽11，折弯型槽11包括多个折弯处111，每个折弯处111均对应一折弯开口，且折弯开口的开口方向向外，每个折弯处111均为直角折弯。在本实施例中，该折弯型槽11包括六个折弯处111。The antenna based on the composite left-handed unit structure, as shown in Figures 1-3, includes adielectric substrate 2, atop metal layer 1 disposed on the top layer of thedielectric substrate 2, and abottom metal layer 3 disposed on the bottom layer of thedielectric substrate 2; the top metal layerA bending groove 11 is opened near the center of 1. Thebending groove 11 includes a plurality ofbending places 111. Eachbending place 111 corresponds to a bending opening, and the opening direction of the bending opening is outward. Thebends 111 are all right-angle bends. In this embodiment, thebending groove 11 includes sixbending places 111 .

顶层金属层1的一侧设置有共面波导，顶层金属层1的一侧开设有凹口12，凹口12的一侧与共面波导的中心导带13相连接，如图1-图2所示，中心导带13通过凹口12的一侧与顶层金属层1相连接且中心导带13与顶层金属层1一体成型，中心导带13与顶层金属层1共面，并与凹口12两侧的顶层金属层1形成共面波导，在本发明的技术方案中，为了方便测量，在中心导带13处设置有微带线（图中未示出），微带线与共面波导的中心导带13相连接，中心导带13为中心金属条带，且微带线为50欧姆微带线，中心金属条与50欧姆微带线相重合。为了满足阻抗匹配要求，可以改变共面波导深入谐振腔的长度，以达到降低反射系数的目的，而微带线和共面波导相连，是为了测量的方便。One side of thetop metal layer 1 is provided with a coplanar waveguide, one side of thetop metal layer 1 is provided with anotch 12, and one side of thenotch 12 is connected to the central conductingstrip 13 of the coplanar waveguide, as shown in Figure 1-Figure 2 It is shown that the central conductingstrip 13 is connected to thetop metal layer 1 through one side of thenotch 12 and the central conductingstrip 13 and thetop metal layer 1 are integrally formed. Thetop metal layers 1 on both sides form a coplanar waveguide. In the technical solution of the present invention, in order to facilitate measurement, a microstrip line (not shown in the figure) is provided at thecentral conduction band 13. The microstrip line and the coplanar waveguide are The central conductingstrip 13 is connected to each other, the central conductingstrip 13 is a central metal strip, and the microstrip line is a 50-ohm microstrip line, and the central metal strip and the 50-ohm microstrip line overlap. In order to meet the impedance matching requirements, the length of the coplanar waveguide deep into the resonant cavity can be changed to achieve the purpose of reducing the reflection coefficient, and the microstrip line is connected to the coplanar waveguide for the convenience of measurement.

介质基板2上设置有一边开口24的矩形区域21，沿该矩形区域21周向等距设置有多个第一金属化通孔22，且在该矩形区域21的内部设置有多排第二金属化通孔23，顶层金属层1与底层金属层3通过金属化通孔相连通，介质基板2、顶层金属层1、底层金属层3与金属化通孔形成矩形基片集成波导谐振腔；矩形基片集成波导谐振腔通过微带线与共面波导相连接；在本实施例中，介质基板2为Rogers5880，介质基板2上设置为一边开口24的正方形区域，正方形区域的四个顶点处，即第一顶点、第二顶点、第三顶点及第四顶点处均设置有一个第一金属化通孔22，该凹口12开设在第一顶点与第二顶点之间，第一顶点与凹口12的一侧设置有两个第一金属化通孔22，第一顶点与第四顶点、第四顶点与第三顶点、第三顶点与第二顶点之间均设置有九个第一金属化通孔22。为了使能量泄露被抑制到几乎可以忽略的程度，第一金属化通孔22的直径大于等于相邻两个所述第一金属化通孔22之间的间距的二分之一，且介质基板2的厚度要远远小于介质波长，本发明优选为第一金属化通孔22的直径等于相邻两个第一金属化通孔22之间的间距的二分之一。Thedielectric substrate 2 is provided with arectangular area 21 with anopening 24 on one side, a plurality of first metallization throughholes 22 are arranged at equal distances along the circumferential direction of therectangular area 21 , and a plurality of rows of second metallization holes are arranged inside therectangular area 21 Throughhole 23, thetop metal layer 1 and thebottom metal layer 3 are connected through the metal through hole, thedielectric substrate 2, thetop metal layer 1, thebottom metal layer 3 and the metal through hole form a rectangular substrate integrated waveguide resonant cavity; The substrate-integrated waveguide resonator is connected to the coplanar waveguide through a microstrip line; in this embodiment, thedielectric substrate 2 is a Rogers5880, and thedielectric substrate 2 is set as a square area with one side opening 24, and the four vertices of the square area are The first vertex, the second vertex, the third vertex and the fourth vertex are all provided with a first metallized throughhole 22, therecess 12 is opened between the first vertex and the second vertex, the first vertex and the recess One side of the 12 is provided with two first metallization throughholes 22, and nine first metallization holes are provided between the first vertex and the fourth vertex, the fourth vertex and the third vertex, and the third vertex and the second vertex. Throughhole 22 . In order to suppress the energy leakage to an almost negligible level, the diameter of the first metallization throughholes 22 is greater than or equal to half of the distance between two adjacent first metallization throughholes 22, and the dielectric substrate The thickness of 2 is much smaller than the wavelength of the medium. In the present invention, it is preferred that the diameter of the first metallization throughhole 22 is equal to half of the distance between two adjacent first metallization throughholes 22 .

凹口12的开口方向与矩形区域21一边开口24的开口方向相同，且凹口12的尺寸与矩形区域21一边的开口24尺寸相匹配，即开口24的宽度大于或等于凹口12的宽度。The opening direction of thenotch 12 is the same as the opening direction of the opening 24 on one side of therectangular area 21 , and the size of thenotch 12 matches the size of the opening 24 on one side of therectangular area 21 , that is, the width of theopening 24 is greater than or equal to the width of thenotch 12 .

在本发明的技术方案中，矩形区域21的内部设置有两排第二金属化通孔23，每排第二金属化通孔23均包括三个等距设置的第二金属化通孔23，每个第二金属化通孔23的直径与折弯开口宽度相同，每个第二金属化通孔23均位于折弯处111在介质基板2上的投影位置。In the technical solution of the present invention, two rows of second metallization throughholes 23 are arranged inside therectangular area 21 , and each row of second metallization throughholes 23 includes three second metallization throughholes 23 arranged at equal intervals. The diameter of each second metallization throughhole 23 is the same as the width of the bending opening, and each second metallization throughhole 23 is located at the projected position of thebending place 111 on thedielectric substrate 2 .

进一步地，底层金属层3上并列设置有两个矩形环槽31，且每个矩形环槽31的内部均设置有一贴片311；贴片311的长度小于矩形环槽31的长度，贴片311的宽度小于矩形环槽31的宽度，且贴片311的宽度与第二金属化通孔23的直径相同。当顶层金属层1、底层金属层3与介质基板2叠合在一起时，从图2中可看出，第二金属化通孔23设置在折弯型槽11的折弯处111，从图3中可看出，第二金属化通孔23设置在贴片311内。Further, tworectangular ring grooves 31 are juxtaposed on thebottom metal layer 3 , and apatch 311 is provided inside eachrectangular ring groove 31 ; the length of thepatch 311 is smaller than the length of therectangular ring groove 31 , the The width is smaller than the width of therectangular ring groove 31 , and the width of thepatch 311 is the same as the diameter of the second metallized throughhole 23 . When thetop metal layer 1 , thebottom metal layer 3 and thedielectric substrate 2 are stacked together, it can be seen from FIG. 2 that the second metallized throughhole 23 is arranged at thebend 111 of thebending groove 11 . As can be seen in 3, the second metallizedvias 23 are provided in thepatch 311.

本实施例中还利用三维电磁仿真软件对所提出的天线结构进行仿真，如图4至图5所示，图4是本发明实施例的仿真和测量的S参数图，从图4可以看出，在工作带宽内，天线回波损耗最低达到-27dB，所以满足阻抗匹配要求。图5是本实施例仿真的E面增益方向图和H面增益方向图，从图5中可以看出，天线的辐射性能较好，辐射效率高。在基片集成波导结合型复合左右手单元结构的天线设计和应用中具有巨大的参考价值。In this embodiment, three-dimensional electromagnetic simulation software is also used to simulate the proposed antenna structure, as shown in FIG. 4 to FIG. 5 , FIG. 4 is the S-parameter diagram of the simulation and measurement according to the embodiment of the present invention, and it can be seen from FIG. 4 , within the working bandwidth, the antenna return loss is at least -27dB, so it meets the impedance matching requirements. FIG. 5 is the E-plane gain pattern and the H-plane gain pattern simulated in this embodiment. It can be seen from FIG. 5 that the antenna has good radiation performance and high radiation efficiency. It has great reference value in the antenna design and application of the substrate-integrated-waveguide-combined composite left-handed unit structure.

本发明公开的一种基于新型复合左右手单元结构的天线，在保留了传统背腔缝隙天线高辐射性能优点的基础上，进一步缩小了天线尺寸，降低了天线的加工成本，更易于和平面电路集成。且本发明的新型复合左右手单元结构比传统复合左右手天线更紧凑，尺寸不变的情况下，有更低的工作频点。另外，本发明复合左右手传输线的零阶或负数阶谐振特性可以有效的突破传统天线在设计上受谐振波长的限制，在天线小型化设计中有极大的应用价值。The invention discloses an antenna based on a novel composite left and right-handed unit structure, which further reduces the size of the antenna, reduces the processing cost of the antenna, and is easier to integrate with the plane circuit on the basis of retaining the advantages of the high radiation performance of the traditional cavity-backed slot antenna. . In addition, the structure of the novel composite left and right-handed unit of the present invention is more compact than the traditional composite left and right-handed antenna, and under the condition of the same size, it has a lower working frequency. In addition, the zero-order or negative-order resonance characteristics of the composite left and right-handed transmission line of the present invention can effectively break through the limitation of the resonance wavelength in the design of traditional antennas, and have great application value in the design of antenna miniaturization.

应该注意的是，上述实施例对本发明进行说明而不是对本发明进行限制，并且本领域技术人员在不脱离所附权利要求的范围的情况下可设计出替换实施例。It should be noted that the above-described embodiments illustrate rather than limit the invention, and that alternative embodiments may be devised by those skilled in the art without departing from the scope of the appended claims.

Claims

Translated fromChinese

1.基于复合左右手单元结构的天线，其特征在于：包括介质基板（2）、设置在介质基板（2）顶层的顶层金属层（1）、及设置在介质基板（2）底层的底层金属层（3）；所述顶层金属层（1）的中心附近开设有折弯型槽（11），及顶层金属层（1）的一侧设置有共面波导；所述介质基板（2）上设置有一边开口（24）的矩形区域（21），沿该矩形区域（21）周向等距设置有多个第一金属化通孔（22），且在该矩形区域（21）的内部设置有多排第二金属化通孔（23），所述顶层金属层（1）与所述底层金属层（3）通过金属化通孔相连通，介质基板（2）、顶层金属层（1）、底层金属层（3）与金属化通孔形成矩形基片集成波导谐振腔；矩形基片集成波导谐振腔通过微带线与所述共面波导相连接；所述底层金属层（3）上并列设置有两个矩形环槽（31），且每个矩形环槽（31）的内部均设置有一贴片（311）；1. An antenna based on a composite left and right-handed unit structure, characterized in that it comprises a dielectric substrate (2), a top metal layer (1) disposed on the top layer of the dielectric substrate (2), and a bottom metal layer disposed on the bottom layer of the dielectric substrate (2). (3); a bending groove (11) is opened near the center of the top metal layer (1), and a coplanar waveguide is provided on one side of the top metal layer (1); the dielectric substrate (2) is provided with A rectangular area (21) with an opening (24) on one side, a plurality of first metallization through holes (22) are arranged equidistantly along the circumferential direction of the rectangular area (21), and inside the rectangular area (21) are arranged Multiple rows of second metallized through holes (23), the top metal layer (1) and the bottom metal layer (3) are connected through the metallized through holes, the dielectric substrate (2), the top metal layer (1), The bottom metal layer (3) and the metallized through holes form a rectangular substrate integrated waveguide resonator; the rectangular substrate integrated waveguide resonator is connected with the coplanar waveguide through a microstrip line; the bottom metal layer (3) is juxtaposed Two rectangular ring grooves (31) are provided, and a patch (311) is provided inside each rectangular ring groove (31);

所述折弯型槽（11）包括多个折弯处（111），每个折弯处（111）均对应一折弯开口，且折弯开口的开口方向向外，每个折弯处（111）均为直角折弯；所述矩形区域（21）的内部设置有两排第二金属化通孔（23），每排第二金属化通孔（23）均包括三个第二金属化通孔（23），每个第二金属化通孔（23）的直径与所述折弯开口宽度相同；The bending groove (11) includes a plurality of bending places (111), each bending place (111) corresponds to a bending opening, and the opening direction of the bending opening is outward, and each bending place (111) corresponds to a bending opening. 111) are all bent at right angles; two rows of second metallization through holes (23) are arranged inside the rectangular area (21), and each row of second metallization through holes (23) includes three second metallization holes (23). through holes (23), the diameter of each second metallized through hole (23) is the same as the width of the bending opening;

每个所述第二金属化通孔（23）均位于所述折弯处（111）在介质基板（2）上的投影位置。Each of the second metallization through holes (23) is located at the projected position of the bending position (111) on the dielectric substrate (2).

2.根据权利要求1所述的基于复合左右手单元结构的天线，其特征在于：所述顶层金属层（1）的一侧开设有凹口（12），凹口（12）的一侧与所述共面波导的中心导带（13）相连接，且所述凹口（12）的尺寸与所述矩形区域（21）一边的开口（24）尺寸相匹配。2 . The antenna based on the composite left and right hand unit structure according to claim 1 , wherein a notch ( 12 ) is formed on one side of the top metal layer ( 1 ), and one side of the notch ( 12 ) is connected to the The central conducting strips (13) of the coplanar waveguide are connected, and the size of the notch (12) matches the size of the opening (24) on one side of the rectangular area (21).

3.根据权利要求2所述的基于复合左右手单元结构的天线，其特征在于：所述共面波导的中心导带（13）与所述顶层金属层（1）共面，并与凹口（12）两侧的顶层金属层（1）形成共面波导，所述微带线与共面波导的中心导带（13）相连接，且矩形基片集成波导谐振腔通过微带线与所述共面波导相连接。3. The antenna based on the composite left and right handed unit structure according to claim 2, characterized in that: the central conduction band (13) of the coplanar waveguide is coplanar with the top metal layer (1), and is coplanar with the notch ( 12) The top metal layers (1) on both sides form a coplanar waveguide, the microstrip line is connected to the central guide strip (13) of the coplanar waveguide, and the rectangular substrate integrated waveguide resonator is connected to the coplanar waveguide through the microstrip line. Surface waveguides are connected.

4.根据权利要求2所述的基于复合左右手单元结构的天线，其特征在于：所述凹口（12）的开口方向与所述矩形区域（21）一边开口（24）的开口方向相同。4 . The antenna based on the composite left and right hand unit structure according to claim 2 , wherein the opening direction of the notch ( 12 ) is the same as the opening direction of the opening ( 24 ) on one side of the rectangular area ( 21 ).

5.根据权利要求1所述的基于复合左右手单元结构的天线，其特征在于：所述贴片（311）的长度小于所述矩形环槽（31）的长度，所述贴片（311）的宽度小于所述矩形环槽（31）的宽度。5. The antenna based on a composite left and right-handed unit structure according to claim 1, characterized in that: the length of the patch (311) is less than the length of the rectangular ring groove (31), and the length of the patch (311) The width is smaller than the width of the rectangular ring groove (31).

6.根据权利要求5所述的基于复合左右手单元结构的天线，其特征在于：所述贴片（311）的宽度与所述第二金属化通孔（23）的直径相同。6 . The antenna based on the composite left and right handed unit structure according to claim 5 , wherein the width of the patch ( 311 ) is the same as the diameter of the second metallized through hole ( 23 ). 7 .

7.根据权利要求1所述的基于复合左右手单元结构的天线，其特征在于：所述第一金属化通孔（22）的直径大于等于相邻两个所述第一金属化通孔（22）之间的间距的二分之一。7. The antenna based on a composite left and right-handed unit structure according to claim 1, wherein the diameter of the first metallized through hole (22) is greater than or equal to two adjacent first metallized through holes (22). ) half of the space between them.